Quark distribution functions in the chiral quark-soliton model: cancellation of quantum anomalies

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dc.creatorGoeke, K.
dc.creatorPobylitsa, P. V.
dc.creatorPolyakov, M. V.
dc.creatorSchweitzer, P.
dc.creatorUrbano, D.
dc.date2000-01-26
dc.date.accessioned2026-07-07T03:40:41Z
dc.date.available2026-07-07T03:40:41Z
dc.descriptionIn the framework of the chiral quark-soliton model of the nucleon we investigate the properties of the polarized quark distribution. In particular we analyse the so called anomalous difference between the representations of the quark distribution functions in terms of occupied and non-occupied quark states. By an explicit analytical calculation it is shown that this anomaly is absent in the polarized isoscalar distribution Δu + Δd, which is ultaviolet finite. In the case of the polarized isovector quark distribution Δu - Δd the anomaly can be cancelled by a Pauli-Villars subtraction which is also needed for the regularization of the ultraviolet divergence.
dc.description17 pages, LaTeX, 5 figures included using epsf
dc.identifierhttps://arxiv.org/abs/hep-ph/0001272
dc.identifierhttp://arxiv.org/abs/hep-ph/0001272
dc.identifierActa Phys.Polon. B32 (2001) 1201-1224
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/39349
dc.subjectHigh Energy Physics - Phenomenology
dc.titleQuark distribution functions in the chiral quark-soliton model: cancellation of quantum anomalies
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